"Glory to God in the highest, and on earth peace" (Luke 2:14).
These words belong to the first Christmas carol ever sung.
But look at the word earth. Move the h from the end of the word to the beginning, and you get heart.
The Peace born on Christmas is God's gift to all the earth. For God so loved the world, that He gave His only Son.
And yet the Peace born on Christmas is God's personal gift to you, that you who believe in Him should not perish but have eternal life.
This, then, is the prayer:
Ah, dearest Jesus, holy Child,
Prepare a bed, soft, undefiled,
A quiet chamber set apart
For You to dwell within my heart.